Table 1.

Patient groups and baseline characteristics

CA125 test result	n	Mean age at diagnosis, years (range)	Patients with a symptom of possible ovarian cancer recorded pre-testing, n (%)a	Townsend score, n (%)
				Level 1	Level 2	Level 3	Level 4	Level 5
				Abnormal	351	65 (22–93)	212 (60)	80 (23)	100 (28)	78 (22)	61 (17)	32 (9)
Normal	105	57 (18–87)	59 (56)	24 (23)	31 (30)	25 (24)	14 (13)	11 (10)
Overall cohort	456	63 (18–93)	271 (59)	104 (23)	131 (29)	103 (23)	75 (16)	43 (9)

CA125 = cancer antigen 125.